Private Venus Art Academy is known as a prestigious school that values all arts, including fine arts and performing arts, but there have been a number of mysterious incidents where students have gone missing. Sensing the scent of a demon, Komiyama Seina, known as School Jeanne, uses the power of holy magic to disguise herself as a student and infiltrate. Finding the demon, Seina transforms into School Jeanne and defeats it, but is knocked down by an electric attack from Anato the Dissector. After being captured, School Jeanne is used as an experimental subject by Anato the Dissector, but at that moment, Brucella Striker, a warrior of justice who also fights against evil, appears to rescue her. [BAD END]